EP2336618A2 - Magnetic actuator - Google Patents

Abstract

The drive (1) has a magnetic tilting armature (5) for engaging two different positions in a magnetizable body (3) depending on magnetization level of the magnetizable body. The armature tilts over a tilting axis (50) and is formed by a bar-shaped armature support (6) that supports a magnetic armature part (7) e.g. permanent magnet (70). The armature part cooperates with the magnetizable body, and the armature support is made of metal, light weight metal, aluminum or plastic. The armature is movably supported in a drive housing (10). An independent claim is also included for a magnetic valve comprising a tappet for cooperating with a passage opening.

Description

The invention relates to a magnetic drive consisting of a magnetizable body and a, at least partially, magnetic hinged armature, wherein the hinged armature on the body depending on the degree of magnetization of the magnetized body is able to take at least two different positions, including the hinged armature folds over a hinged axis.

Furthermore, the invention also includes a solenoid valve which comprises a magnetic drive as described.

The aforementioned magnetic drives or solenoid valves are known in the art. This is how the German patent application describes 44 05 657 a special solenoid valve, wherein the hinged armature is equipped with two spaced rams, which cooperate in a suitable manner with the passage openings of the valve. Depending on the position of the hinged armature, for example, one passage opening is released and the other closed and vice versa. For example, the arrangement is chosen so that in a first position, the pressure port is shut off and the working port is vented through the vent port, for which the ventilation port is open. In the second position, the pressure port is opened and at the same time the vent port is closed, whereby the medium to be controlled flows into the valve at the pressure port and leaves the valve again at the working port. The respective passage opening is connected to the working connection or the venting connection. The aforementioned magnetic drives have a magnetizable body, for example, an electromagnet, which is magnetized as needed. In the case of an electromagnet, the electric current is conducted through the windings of the coil, whereby the magnetic field is created. As a result, the magnetic hinged armature is tightened and executed the switching movement. Thus, the degree of magnetization usually has two different values, for example "no magnetization" and "one magnetization" (when, for example, the current through the coil of the electromagnet is switched on.

Generic solenoid valves are suitable for example for the regulation and / or control of flowable media such as gases or liquids, the scope therefore mainly includes pneumatic or hydraulic tasks.

The scope of a solenoid valve is for the generic magnetic drive only one application, the invention therefore also claims protection for a magnetic drive in any application.

The movement concept is based on the attractive effect of magnets or electromagnets. In the prior art, for example, a magnetizable hinged armature is provided, which is designed like a bar and folds around a folding axis, so pivots. The magnetizability of the hinged armature is produced by a corresponding material, for example a sintered material such as sintered metal (MIM) or another metallic or magnetizable material, which has a corresponding magnetization or magnetizability and mass.

In this case, the entire mass of the hinged armature during the switching movement (from the first to the second position) to move, which requires corresponding forces when a desired switching speed is to be achieved.

The magnetic hinged armature is moved by a magnetizable body if necessary. As a magnetizable body, for example, an electromagnet is provided. It is basically possible with increased effort, for example, with a larger coil or with a larger number of windings on the coil to increase the attractive effect of the electromagnet and thus the accelerating force on the hinged armature, but this is also a correspondingly higher cost (and therefore costs) and with higher weight and build volume.

It is therefore an object of the invention to avoid at least one of the aforementioned disadvantages, in particular to provide a magnetic drive, which switches faster.

This object is achieved by a magnetic drive, as described above, wherein it is proposed that the hinged armature is formed by an anchor carrier, which carries a magnetic anchor member, which cooperates with the magnetic body. The invention proposes a prizipiell two-piece hinged armature, which is formed by an anchor carrier, which receives the magnetic anchor member. This solution leads to a surprisingly large number of advantages.

The proposal according to the invention initially makes it possible to realize the hinged armature much more easily with the same magnetic properties, which, due to the lower mass to be accelerated, produces attractive forces generated by the magnetizable body, leading to higher acceleration and therefore shorter switching times. Furthermore, the inventive proposal allows to use the relatively expensive magnetic material of the hinged armature effectively. Namely, it is only in the area a magnetic anchor member arranged on the hinged armature according to the invention, where this is optimally positioned in cooperation with the magnetizable body and highly efficient. In particular, a corresponding magnetic armature part is used to close the magnetic flux. However, this determines a sufficient size of the magnetic armature part and therefore a corresponding lower mass of the magnetic material of the hinged armature. The relatively expensive material can be saved.

The proposal according to the invention also opens up the possibility of making the magnetizable body, for example an electromagnetic drive (a coil) smaller, in order to achieve the same or even better switching properties of the hinged armature. This is accompanied by less effort in the realization of the magnetizable body and a lower energy consumption during the switching process. In addition, the body size can be reduced.

In a preferred embodiment of the invention, the anchor carrier is formed of a different material than the magnetic anchor part. However, the effect according to the invention (for example reduction of the production costs) is also achieved with an arrangement in which the armature carrier and the armature part basically consist of the same material but the armature part additionally has a magnetic activation. The magnetic activation can only be limited to the anchor part. The embodiment described above forms the subject of the main claim and the preceding subclaims and serves to solve the problem set in the same way.

Another advantage of the invention lies in the fact that the magnetic property of the anchor member is spatially to position exactly as the magnetizable body is effective in the magnetic drive. Usually, the hinged armature is generally larger than the magnetic anchor part and also by the concentration of the magnetic property of the hinged armature on the magnetic anchor part control losses and resulting mechanical limitations are effectively avoided by the inventive Ben-proposal. Accordingly, the embodiment described above, the subject matter of the main claim and the preceding dependent claims and serves to solve the problem set in the same way.

In a preferred embodiment of the invention it is provided that the anchor carrier consists of a lightweight material, a metal, a light metal, for example aluminum or a plastic. In addition to homogeneous plastics, however, the invention also includes fiber-reinforced plastics, which are used to form the anchor carrier, in which case, for example, carbon fibers or glass fibers can be used. The effect according to the invention of a weight saving On the anchor carrier, for example, is already realized in an anchor carrier formed from a flat metal piece, which is made for example as a stamped part or stamped and bent part of a flat (sheet metal) piece of metal. Sufficient strength for the application of the magnetic drive is combined here with low weight and low production costs while still sufficient magnetic properties, which also depend on the selection and dimensioning of the anchor part. The embodiment described above forms the subject of the main claim and the preceding subclaims and serves to solve the problem set in the same way.

Usually, the anchor carrier, according to the invention, designed bar-shaped and extends, from the spatial configuration forth, on the magnetizable body, for example, in its edge region corresponding controls, such as one or more sealing nipple or one or more plunger record.

Cleverly, the magnetic anchor part is designed as a permanent magnet, but without wishing to limit the invention thereto. The anchor part is formed, for example, from sintered materials, such as sintered metal (MIM) or other metallic materials.

In a preferred embodiment of the invention, the anchor carrier is not formed as a profile section, but the anchor carrier is equipped at least on one side with a blunt bend to form a rocking edge. It is provided according to the invention that the magnetizable body facing and / or facing away from limiting surface of the armature carrier from at least two, in particular depending on a rocker edge blunt abutting faces is formed. According to the proposal according to the invention can also both Boundaries can be realized with each butt abutting faces. The thereby forming convex or concave (n) rocker edge (s) then serve / serve then optionally also as storage or support area just in the rocking or folding movement of the hinged armature. The embodiment described above forms the subject of the main claim and the preceding subclaims and serves to solve the problem set in the same way.

For mounting purposes, the hinged armature is placed on the magnetizable body and optionally held by an activation of the magnetizable body (for example, switching on the flow of current through the magnetic coil). However, the hinged armature is mounted sufficiently movable in a drive housing, in particular a cover part is provided, which receives the hinged armature and which is arranged on the side facing away from the body. In the cover part, one or more Abstütznoppen or ribs are provided for the hinged armature, which optionally also cooperate with the rocker edge of the armature carrier or is arranged in the vicinity of the respective partial surface / are. The cover part is arranged on the side facing away from the body and therefore is / are also one or more Abstütznoppen or ribs arranged on the side facing away from the body and cooperate with the hinged armature.

The arrangement is chosen so that the hinged armature retains a certain mobility or play to the folding movement so a pivoting movement to perform the rocker edge or the Abstütznoppen or ribs can. The rocking axis, as well as preferably the rocking edge, oriented substantially perpendicular to the longitudinal extent of the beam-shaped anchor carrier.

In a preferred variant of the invention is provided in that the hinged armature has at least one recess, penetration opening or guide groove and a guide pin or guide web which projects into or engages in the recess, through-opening or guide groove is provided on the cover part and / or the housing part accommodating in particular the magnetic body. With the aid of this variant according to the invention, the hinged armature, in particular either the armature carrier or alternatively the magnetic armature part, with a recess (for example blind hole-like) or with a guide groove, which may also be formed as a penetration opening, equipped to the hinged armature here on a guide web or pin to thread. The storage of the hinged armature on the guide web, which may also be pin-shaped and then interacts with a corresponding penetration opening, takes place with sufficient clearance so that the hinged armature can perform a desired folding or rocking motion. He then relies, for example, on the web end or the guide groove has a corresponding width, which is significantly larger than the width of the guide bar, so that a corresponding movement game or folding game remains. The arrangement is alternatively feasible so that the guide web is arranged either on the cover part or on the housing receiving the magnetic body. Of course, it is also possible to arrange the guide web in the region of the magnetic body, which is also included in the invention. It is also possible to arrange a partial web of the guide web both on the cover part and on the housing part, with the result that the guide web is distributed over two partial webs. In this variant, the guide web is divided into two partial guide webs, which are arranged on the housing part or the cover part. The embodiment described above forms the subject of the main claim and the preceding subclaims and serves to solve the problem set in the same way.

In a preferred embodiment of the invention, the magnetic body is formed by a coil which carries wire windings, which can be traversed by electric current. Alternatively, it is possible that the magnetic body is formed by a movable permanent magnet. The arrangement is chosen so that the magnetic body can be activated in a suitable manner so as to act on the magnetic anchor part and to realize the desired switching movement of the magnetic drive. The embodiment described above forms the subject of the main claim and the preceding subclaims and serves to solve the problem set in the same way.

Preferably, the magnetizable body is formed not only by a coil, but by a coil pair, which are placed on a preferably rectangular shaped U-shaped yoke. In a preferred embodiment, in particular a hinged coil is provided, which consists of two coil areas, which are arranged unfolded during winding of the coil, so that there is a longitudinally extending, two-part bobbin, which are folded after completion of the winding so folded over can and two afterwards arranged in parallel, possibly also symmetrical coils which are pushed onto the legs of the U-shaped yoke. Here, the two coil area are connected to each other by a hinge, such as a film hinge, to provide a corresponding fixation but also mobility available. Also, the embodiment described above forms the subject of the main claim and the preceding dependent claims and serves to solve the problem set in the same way.

As already stated, the invention comprises not only a magnetic drive, but also relates to a solenoid valve, which with a corresponding, magnetic drive according to the invention is provided, it being provided that in a valve housing which has at least one opening to be opened or to be closed passage opening, the hinged armature carries at least one plunger, which cooperates with the passage opening. In particular in application areas of a solenoid valve, it depends on efficient and fast switching of the passage openings, with the inventive solenoid valves arbitrary media (gaseous or liquid) can be controlled or regulated.

The solenoid valve according to the invention comprises at least one plunger, which optionally also acts like a nipple. As is particularly pointed out in the drawing, in a special application, the hinged armature is equipped with a respective plunger or nipple in the end region of the bar-like hinged armature in order to cooperate there with a passage opening. The arrangement is chosen so that closes or releases the respective passage opening according to the position of the hinged armature of the plunger or the nipple.

In this context, it is particularly pointed out that all described in relation to the magnetic drive features and properties but also procedures mutatis mutandis applicable also with respect to the formulation of the solenoid valve according to the invention and applicable in the context of the invention and be mitwidbart. The same applies in the reverse direction, that is, only with respect to the solenoid valve called structural, so device-related features can also be considered and claimed within the scope of the claims for the magnetic drive and also count to the invention and to the disclosure.

In a preferred embodiment of the solenoid valve according to the invention it is provided that the housing part of the valve housing facing the hinged armature as a cover part of the drive housing serves. Cleverly, one or more passage openings are arranged in the valve housing and are controlled by the nipple or plunger which is or are arranged on the hinged armature. This variant cleverly has a dual function, since it takes on one of the tasks of the valve or valve housing and, in particular provides the passage openings available and on the other as a cover part of the drive housing, for example for a storage of the hinged armature, as described, is provided. The embodiment described above forms the subject of the main claim and the preceding subclaims and serves to solve the problem set in the same way.

According to the invention it is provided that the drive housing is formed one or more parts. Also belonging to the drive housing cover part can be formed again in one or more parts.

The use of a magnetic drive according to the invention is in a solenoid valve such that, for example, the hinged armature is directed according to its position with its acting as a nipple plunger on a passage opening and opens or closes, if necessary, only a part opens, so controls and controls. In such an embodiment, the hinged armature is arranged in the medium flowed through the valve space, which is otherwise formed correspondingly tight.

In an alternative embodiment, it is provided that the hinged armature is delimited by a membrane from the valve chamber and the plunger acts on the passage opening via a membrane part or a membrane region. In this case, if appropriate, the plunger is at least positively connected to the membrane part in order to reliably carry out the opening or closing movement. The frictional Composite can be realized for example by a positive or cohesive connection (eg gluing, welding, one-piece production and so on). The embodiment described above forms the subject of the main claim and the preceding subclaims and serves to solve the problem set in the same way.

Fig. 1a, 1b, 2a, 2b und 3a

ein erfindungsgemäßes Magnetventil unter Verwendung eines erfindungsgemäßen Magnetantriebes jeweils in einer Schnittdarstellung in verschiedenen Stellungen (Fig. 1a, 2a in einer ersten Stellung beziehungsweise Fig. 1b, 2b in einer zweiten Stellung);

Fig. 2c und 2d

Details verschiedener Ausführungsformen der Abstützung für den Klappanker und

Fig. 3b bis 3d

Details verschiedener Ausführungsformen eines im erfindungsgemäßen Magnetventils verwendbaren Klappankers, jeweils in perspektivischer Darstellung.

In the drawing, the invention is shown schematically in particular in various embodiments. Show it:

Fig. 1a, 1b, 2a, 2b and 3a

an inventive solenoid valve using a magnetic drive according to the invention in each case in a sectional view in different positions ( Fig. 1a . 2a in a first position respectively Fig. 1b . 2 B in a second position);

Fig. 2c and 2d

Details of various embodiments of the support for the hinged armature and

Fig. 3b to 3d

Details of various embodiments of a usable in the solenoid valve hinged armature, each in perspective view.

In the figures, the same or corresponding elements are denoted by the same reference numerals and therefore, if not appropriate, will not be described again.

The solenoid valve 100 according to the invention is exemplary with Help the Fig. 1a shown. Roughly, the solenoid valve 100 according to the invention consists of the magnetic drive 1 and on the bottom (it may be application technology but also on the top) arranged valve housing 2, which receives the various media connections, which open into the passage openings 20, 21, 22.

In each variant shown in these embodiments, the left passage opening 20 serves as a connection of the pressure line, the centrally disposed passage opening 21 is connected to the working port, the arranged on the right side passage opening 22 serves as a connection to the vent line. The pressure opening associated with the passage opening 20 on the left side and the vent line, arranged on the right side passage opening 22 are opened or closed according to the position of the hinged armature 5.

The connected to the centrally arranged passage opening 21 working port is not closed in this variant.

It is clear that the configuration of the valve part of the solenoid valve 100 is very variable and adaptable to different circumstances. Of course, the invention is not limited to the embodiment shown here. The magnetic drive 1 consists of a magnetizable body 3 and an at least partially magnetic hinged armature 5. The hinged armature 5 assumes depending on the degree of magnetization of the magnetic body 3 at this several positions, in the embodiment shown here, the hinged armature 5 assumes two different positions, in the Fig. 1a . 2a on the one hand or Fig. 1b . 2 B on the other hand are shown.

The hinged armature 5 is according to the invention of an anchor carrier 6, which carries a magnetic anchor part 7. This magnetic anchor part 7 cooperates with the magnetizable body 3.

The entire magnetic drive 1 is arranged in a drive housing 10, the upper housing part 10 a of the drive housing 10 is fixedly connected to the valve housing 2 by lateral connecting brackets 12.

In the embodiment shown here, the magnetic body 3 consists of a U-shaped yoke 34. The yoke 34 consists of two parallel legs 36a, b, which are connected by the right angle adjoining web 37. The U-shaped yoke 34 is arranged downwardly open in the direction of the hinged armature 5 arranged underneath. The yoke 34 is made of a magnetizable material and serves to bundle and guide the magnetic field lines.

The magnetic field, in the embodiment shown here, is generated by two parallel juxtaposed windings 32, 33 carrying coil or bobbin 30, 31, namely, when the windings 32, 33 with electric current, for example via the terminal contacts 35, acted upon or flowed through become.

In Fig. 1a (and Fig. 2a ), the de-energized position is shown. That is, between the hinged armature 5 facing the boundary surface and the hinged armature 5 is an air gap 39. The hinged armature 5 is formed according to the invention in several parts. It consists of an anchor support 6 and an anchor member 6 held by the anchor member 7. Preferably, the anchor carrier 6 is made of non-magnetic or weak magnetic material, so as not to affect the other magnetic properties of the magnetic drive. The anchor carrier 6 is realized bar-shaped longitudinal extension and extends over the Width of the yoke 34. Arranged approximately in the center of the anchor carrier 6 carries the magnetic anchor member 7, wherein the length of the anchor member 7 here substantially corresponds to the width of the magnetic body 3, in particular of the yoke 34. Generally, the invention provides that the width of the anchor member 7 to about 75% to 150% of the width of the magnetic body 3, in particular of the yoke 34 corresponds. An interval for the width of the anchor part 7 of approximately 80% to 120% of the width of the magnetic body 3 was preferably found.

The anchor part 7 is held by the anchor carrier 6. For this purpose, the armature carrier 6 is formed significantly longer than the width of the anchor part 7. In the in Fig. 1a The width of the anchor member 7 is approximately 40% of the length of the armature carrier 6. It has proved to be favorable according to the invention to choose the width of the anchor member 7 between 20% and 55% of the length of the armature support 6, preferably between 30% and 50 %. Here a good relationship was found between the available magnetic attraction and the available mechanical levers.

The height of the anchor carrier 6 is about 18% of its length and is inventively provided at an interval of 10% to 35%, preferably from 12% to 25%.

The hinged armature 5 is one of the movable elements of the magnetic drive 1. Therefore, the storage of the hinged armature 5 is selected so that it can perform a pivoting movement. The Verschwenkweg is relatively low and is only a few degrees, while the air gap 39 is closed (see. Fig. 1b ). The hinged armature is thereby moved when the windings 32, 33 are applied to the bobbins 30, 31 with electric current and the magnetic field forming the magnetic anchor part 7 of the hinged armature 5 attracts. The hinged armature 5 folds or pivots about the folding axis 50. This is in the embodiment shown here is perpendicular to the plane of the drawing and at right angles to the longitudinal extent of the armature carrier 6. In this case, the folding axis 50 is on the upper side of the hinged armature 5, the magnetizable body 3 faces. As the lower part 7, for example, a permanent magnet 70 is provided.

The armature carrier 6 is realized like a bar in the embodiment shown here and has a recess 60 for weight reduction in the region of the armature part 7. The recess 60 is provided on the side facing away from the magnetizable body 3. The hinged armature 5 is realized like a rocker, wherein the two rocker arms, which extend to the left and right of the hinged axis 50, have different lengths.

The folding axis 50 is in the embodiment shown here at the right end of the magnetizable body 3 and thus also at the right end of the anchor part. 7

The magnetizable body 3 is surrounded by the material of the drive housing 10, for example, a potting compound. However, the arrangement is selected so that the front boundary surface 38 of the yoke 34 projects with respect to the boundary surface 16 against which the hinged armature 5 rests.

In the exemplary embodiment shown here, the rocker arm of the hinged armature 5 extending to the left from the hinged axis 50 is slightly longer than the right rocker arm. The asymmetry is from about 62% to 38% and is according to the invention in an interval of 75% to 55% up to 25% to 45%. Of course it is also possible that both rocker arms are approximately the same length or actually the same length.

Due to the different rocker arm length, the lever law is used by the invention, which in particular in the de-energized position the secure closure of the pressure port facilitates at the passage opening 20. In Fig. 1a the lowered position of the magnetic drive 1 is shown and the passage opening 20 is closed by the nipple-like plunger 52.

In the application of a solenoid valve 100 shown here, the (movable) hinged armature 5 carries one or more, in particular also serving as nipples, plungers 52, 53. The plungers 52, 53 are arranged in the elongate end region of the hinged armature 5 on or in the armature carrier 6. For this purpose, the armature carrier 6 has a receptacle in which the plunger 52, 53 is used, wherein the plunger 52, 53 has a certain mobility or play, preferably at right angles to the longitudinal extent of the armature support 6 or hinged armature 5, has.

Preferred is in the in Fig. 1a, 1b shown application of the plunger 52, 53 equipped with a sealing property, so acts as a nipple and consists for example of elastomers or other sealing materials.

For a secure closing of the respective passage openings 20, 22 through the plungers 52, 53 associated with the passage openings, a plunger spring 54a, b are respectively arranged for the plungers 52, 53.

The ram spring 54b which attaches to the left tappet 52 is located in a blind bore 15 of the drive housing 10 and is supported on the bottom of this blind hole 15.

The plunger spring 54a engaging the right plunger 53 is mounted in an emergency manual operation 8 and is supported there. The manual override 8 is designed, for example, as a movable bolt arrangement and also has a blind hole 80 at its ends facing the hinged armature 5. In the event that the magnetizable body 3 fails, for example none Energization of the windings is possible, it is possible by the emergency manual operation 8, act directly on the plunger 53 and push it on the through hole, which is a switching of the valve from the position to Fig. 1a in the position Fig. 1b (analogous Fig. 2a to Fig. 2b ). In this case, the emergency manual operation 8 acts directly on the plunger 53, thereby compressing the plunger spring 54a and also actuates the hinged armature 5 and the opposite plunger 52nd

Due to the rocking or folding movement of the hinged armature 5 in the magnetic drive 1, the anchor support 6 or the hinged armature 5 is not prismatic, but has corresponding bevels.

Thus, the hinged armature 5 or the armature carrier 6 in the right region relative to the folding axis 50 is conically or wedge-shaped tapering.

Left of the folding axis 50 of the armature carrier 6 is provided with substantially parallel boundary surfaces 61, 62, to taper at the end and there to receive the (left) plunger 52.

In this case, the boundary surface 61 is arranged on the armature carrier 6 on the side facing the magnetizable body 3, the boundary surface 62 is arranged on the side facing away from the magnetizable body 3 side.

In this case, the boundary surface 61 of the armature carrier 6 facing the body 3 is formed from at least two partial surfaces 61a, b butting against one another at a rocking edge. The limiting surface 62 facing away from the body 3 is formed from two partial surfaces 62a, b butting against one another at a rocking edge. Due to the residue of the boundary surface 16 of the drive housing 10 with respect to the boundary surface 38th On the magnetizable body 3, in the region of the folding axis 50, on which, of course, a folding edge is formed, on the magnetizable body 3 facing boundary surface 61, a small shoulder between the two partial surfaces 61a, b arranged. By this paragraph, the hinged armature 5 and the anchor carrier 6 already undergoes a certain storage and positioning in the drive housing 10th

The drive housing 10 has a cover part 11 under which the hinged armature 5 is provided. The cover part 11 has in the region of the rocking edge 63, which is arranged on the side facing away from the magnetizable body 3 boundary surface 62, one or more Abstütznoppen 13a or ribs 13b for storage of the hinged armature 5. The embodiment with supporting nubs 13a is in Fig. 2c , the embodiment with a support rib 13b in Fig. 2d shown in detail. Fig. 2a and 2b show an embodiment with support ribs 13b during the arrangement of supporting nubs 13a in Fig. 1a and 1b is shown. The design is chosen so that, of course, a folding or pivoting movement of the hinged armature 5 about its pivot axis 50 remains possible, that is, a portion of the boundary surface 62 optionally slides on the supporting nubs 13a and 13b supporting ribs. The arrangement is chosen so that the hinged armature 5 reliably remains in position, so there is a certain play or a corresponding fit between the supporting nubs 13a or support ribs 13b and the boundary surface 62nd

The arrangement of Abstütznoppen 13a and support ribs 13b is not limited to the embodiments shown in each case, but can optionally be exchanged or used between or with the possible embodiments.

As already stated, the cover part 11 is in the application a solenoid valve 100 also at the same time the valve housing cover part 23, which limits the valve chamber 24.

Depending on the position of the nipples or plungers 52, 53, the valve space 24 is connected to the respective connection lines relative to the respective passage openings 20, 22. In the in Fig. 1a, 1b the variant shown, the hinged armature 5 is flowed around by the medium to be controlled, since the hinged armature 5 is arranged in the valve chamber 24.

In the event that aggressive media with the solenoid valve according to the invention to control or regulate, it may be beneficial to arrange a membrane 25 between the valve chamber 24 and the hinged armature 5. In this case, the supporting knobs 13a or the supporting rib 13b are arranged on a membrane carrier 27. The supporting knobs 13a and the supporting ribs 13b face the hinged armature 5, and the membrane 25 is provided on the side facing away from the supporting knobs 13a or supporting ribs 13b. The membrane carrier 27 represents an additional delimitation wall between the valve chamber 24 and the hinged armature 5.

In the region of the passage openings 20, 22 to be closed or opened, the membrane 25 has hat-shaped membrane parts 26a, b, which interact with the plungers 52, 53. In this case, the passage openings 20, 22 are overlapped by the hat-shaped membrane parts 26a, b, the plugs 52, 53 facing a recess for fixing the membrane part 26a, b to the respective plunger 52, 53 has. In this case, an at least frictional connection between the plunger 52, 53 and the membrane part 26a, b is preferably provided in order to reliably transmit the control movement of the hinged armature 5 to the membrane part 26a, b producing the seal.

As well in Fig. 1a, 1b on the one hand as well as in Fig. 2a, 2b On the other hand, in each case two different switching positions of the solenoid valve 100 are shown. In the (fallen) position of the electromagnet, in particular the non-magnetic position of the magnetizable body 3, the pressure port on the left passage opening 20 by the plunger 52 is umittelbar (the plunger is nipple-like) or indirectly (the plunger 52 acts on the diaphragm member 26 a) closed , please refer Fig. 1a and Fig. 2a ,

The work connection connected centrally to the non-closed passage opening 21 is vented via the vent line connected to the right-hand passage opening 22, for which purpose this passage opening is not closed by the plunger 53.

In the activated position (see Fig. 1b respectively Fig. 2b ), the hinged armature 5 folds by a few degrees (1 ° to 5 °), the air gap 39 between the yoke 34 and the hinged armature 5 is closed. The resulting clockwise movement opens the left port 20 (the pressure port) and simultaneously closes the right port 22 (the vent line). The pressure applied to the pressure line working pressure is available at the working port (the passage opening 21).

In Fig. 3 is still an alternative storage concept of the hinged armature 5 is shown, which is shown here in the variant without a membrane, but is easily transferable to the variant with membrane. Instead of Abstütznoppen 13a or support ribs 13b here in the hinged armature 5, in particular in the armature carrier 6, a guide groove 51c provided in which a protruding at the lid portion 11 projecting guide pin 14a and the hinged armature 5 or anchor carrier 6 leads. The thickness of the guide pin 14a and the width of the guide groove 51 are selected with sufficient clearance that a mobility of the hinged armature 5 to the folding axis 50 remains possible. In addition to the embodiment shown here with a guide pin 14a engaging in the guide groove 51c, it is possible to provide a penetration opening 51b or a recess 51c in the hinged armature 5, in which the guide pin 14a, which may also be designed as a guide web 14b (cf. Fig. 3b and 3c ). The possible alternatively with all embodiments of the invention mutually usable or combinable embodiments of guide pin 14a or guide web 14b and the recess 51c, the penetration opening 51b and the guide groove 51a are in the detail drawings of Fig. 3b to 3d played.

The claims now filed with the application and later are attempts to formulate without prejudice to the attainment of further protection.

If, on closer examination, in particular also of the relevant prior art, it appears that one or the other feature is beneficial for the purpose of the invention, but not of decisive importance, it is of course already desired to formulate such a feature , in particular in the main claim, no longer having.

It should further be noted that the embodiments and variants of the invention described in the various embodiments and shown in the figures can be combined with one another as desired. Here, one or more features are arbitrarily interchangeable. These feature combinations are also disclosed with.

The references cited in the dependent claims indicate the further development of the subject matter of the main claim by the features of the respective subclaim. However, these are not as a waiver of achievement an independent, objective protection for the features of the dependent claims.

Features that have hitherto been disclosed only in the description may be claimed in the course of the method as of essential importance to the invention, for example to distinguish from the prior art.

Features which have been disclosed only in the description, or also individual features of claims comprising a plurality of features, may at any time be included in the first claim for distinction from the prior art, even if such features are associated with others Characteristics were mentioned or achieve particularly favorable results in connection with other features.

Claims (15)

Magnetic drive (1), consisting of a magnetizable body (3) and an at least partially magnetic hinged armature (5), wherein the hinged armature (5) on the body (3) is able to occupy at least two different positions depending on the degree of magnetization of the body (3) for which the hinged armature (5) folds over a hinged axis (50) and the hinged armature (5) is formed by an armature carrier (6) carrying a magnetic armature part (7), which cooperates with the magnetizable body (3). Magnetic drive according to claim 1, characterized in that the armature carrier (6) consists of a different material than the magnetic anchor part (7). Magnetic drive according to claim 1 or 2, characterized in that the armature carrier (6) consists of a lightweight material, metal, light metal, aluminum or (fiber-reinforced) plastic. Magnetic drive according to one of the preceding claims, characterized by a bar-shaped armature carrier (6). Magnetic drive according to one of the preceding claims, characterized in that the magnetic anchor part (7) is designed as a permanent magnet (70). Magnetic drive according to one of the preceding claims, characterized in that the width of the anchor part (7) is about 75% to 150% of the width of the body (3), preferably about 80% to 120% of the width of the body (3). Magnetic drive according to one of the preceding claims, characterized in that the width of the anchor part (7) is between 20% and 55% of the length of the armature support (6), preferably between 30% and 50% of the length of the armature support (6). Magnetic drive according to one of the preceding claims, characterized in that the body (3) facing and / or facing boundary surface (61, 62) of the armature carrier (6) consists of two, in particular on a rocking edge (63) butt-abutting partial surfaces (61a, 61b , 62a, 62b) is formed. Magnetic drive according to one of the preceding claims, characterized in that the hinged armature (5) in a, possibly also the magnetizable body (3) surrounding the drive housing (10) is movably mounted and the drive housing (10) facing away from the body (3) Side has a cover part (11). Magnetic drive according to one of the preceding claims, characterized in that on the cover part (11) one or more support nubs (13b) or support ribs (13a) are provided for the hinged armature (5). Magnetic drive according to one of the preceding claims, characterized in that the hinged armature (5) at least one recess (51c), a penetration opening (51b) or a guide groove (51a) and on the cover part (11) and / or in particular the magnetized body (3) receiving housing part (10 a) in the recess (51 c), penetration opening (51 b) or guide groove (51 a) einführender guide pin (14 a) or guide web (14 b) is provided. Magnetic drive according to one of the preceding claims, characterized in that the magnetizable body (3) is formed by a coil (30, 31) which carries windings (32, 33) of wire which can be passed through by electric current or in that the magnetizable body ( 3) is formed by a movable permanent magnet. Solenoid valve comprising a magnetic drive according to one or more of the preceding claims and a valve housing (2) which has at least one opening opening (20, 22) to be opened or closed and the hinged armature (5) carrying at least one plunger (52, 53), which cooperates with the passage opening (20,22). Solenoid valve according to claim 13, characterized in that the hinged armature (5) facing the housing part (23) of the valve housing (2) as a cover part (11) of the drive housing (10). Solenoid valve according to Claim 13 or 14, characterized in that the hinged armature (5) is arranged in the medium-flowed valve space (24) or is delimited from the valve space (24) by a membrane (25) and the plunger (52, 53) is directed onto the passage opening via a membrane part (26a, 26b) (20,22) works.

Images